3x-y=7
3x-y-7=7-7
3x-y-7=0
Answer:
4/5-1/5=6.0
9/11+5/11=1.27
3/4+1/8=0.875
AAS
Step-by-step explanation:
45,45,90
3x + 3x + 6x= 180
12x=180
x= 180/12= 15
3x=3×15=45
6x=6×15=90